/* Broadcom BCM43xx wireless driver Copyright (c) 2005 Martin Langer , Stefano Brivio Michael Buesch Danny van Dyk Andreas Jaggi This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "bcm43xx_leds.h" #include "bcm43xx_radio.h" #include "bcm43xx.h" #include static void bcm43xx_led_changestate(struct bcm43xx_led *led) { struct bcm43xx_private *bcm = led->bcm; const int index = bcm43xx_led_index(led); const u16 mask = (1 << index); u16 ledctl; assert(index >= 0 && index < BCM43xx_NR_LEDS); assert(led->blink_interval); ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL); ledctl = (ledctl & mask) ? (ledctl & ~mask) : (ledctl | mask); bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl); } static void bcm43xx_led_blink(unsigned long d) { struct bcm43xx_led *led = (struct bcm43xx_led *)d; struct bcm43xx_private *bcm = led->bcm; unsigned long flags; spin_lock_irqsave(&bcm->leds_lock, flags); if (led->blink_interval) { bcm43xx_led_changestate(led); mod_timer(&led->blink_timer, jiffies + led->blink_interval); } spin_unlock_irqrestore(&bcm->leds_lock, flags); } static void bcm43xx_led_blink_start(struct bcm43xx_led *led, unsigned long interval) { if (led->blink_interval) return; led->blink_interval = interval; bcm43xx_led_changestate(led); led->blink_timer.expires = jiffies + interval; add_timer(&led->blink_timer); } static void bcm43xx_led_blink_stop(struct bcm43xx_led *led, int sync) { struct bcm43xx_private *bcm = led->bcm; const int index = bcm43xx_led_index(led); u16 ledctl; if (!led->blink_interval) return; if (unlikely(sync)) del_timer_sync(&led->blink_timer); else del_timer(&led->blink_timer); led->blink_interval = 0; /* Make sure the LED is turned off. */ assert(index >= 0 && index < BCM43xx_NR_LEDS); ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL); if (led->activelow) ledctl |= (1 << index); else ledctl &= ~(1 << index); bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl); } static void bcm43xx_led_init_hardcoded(struct bcm43xx_private *bcm, struct bcm43xx_led *led, int led_index) { /* This function is called, if the behaviour (and activelow) * information for a LED is missing in the SPROM. * We hardcode the behaviour values for various devices here. * Note that the BCM43xx_LED_TEST_XXX behaviour values can * be used to figure out which led is mapped to which index. */ switch (led_index) { case 0: led->behaviour = BCM43xx_LED_ACTIVITY; led->activelow = 1; if (bcm->board_vendor == PCI_VENDOR_ID_COMPAQ) led->behaviour = BCM43xx_LED_RADIO_ALL; break; case 1: led->behaviour = BCM43xx_LED_RADIO_B; if (bcm->board_vendor == PCI_VENDOR_ID_ASUSTEK) led->behaviour = BCM43xx_LED_ASSOC; break; case 2: led->behaviour = BCM43xx_LED_RADIO_A; break; case 3: led->behaviour = BCM43xx_LED_OFF; break; default: assert(0); } } int bcm43xx_leds_init(struct bcm43xx_private *bcm) { struct bcm43xx_led *led; u8 sprom[4]; int i; sprom[0] = bcm->sprom.wl0gpio0; sprom[1] = bcm->sprom.wl0gpio1; sprom[2] = bcm->sprom.wl0gpio2; sprom[3] = bcm->sprom.wl0gpio3; for (i = 0; i < BCM43xx_NR_LEDS; i++) { led = &(bcm->leds[i]); led->bcm = bcm; setup_timer(&led->blink_timer, bcm43xx_led_blink, (unsigned long)led); if (sprom[i] == 0xFF) { bcm43xx_led_init_hardcoded(bcm, led, i); } else { led->behaviour = sprom[i] & BCM43xx_LED_BEHAVIOUR; led->activelow = !!(sprom[i] & BCM43xx_LED_ACTIVELOW); } } return 0; } void bcm43xx_leds_exit(struct bcm43xx_private *bcm) { struct bcm43xx_led *led; int i; for (i = 0; i < BCM43xx_NR_LEDS; i++) { led = &(bcm->leds[i]); bcm43xx_led_blink_stop(led, 1); } bcm43xx_leds_switch_all(bcm, 0); } void bcm43xx_leds_update(struct bcm43xx_private *bcm, int activity) { struct bcm43xx_led *led; struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm); struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm); const int transferring = (jiffies - bcm->stats.last_tx) < BCM43xx_LED_XFER_THRES; int i, turn_on; unsigned long interval = 0; u16 ledctl; unsigned long flags; spin_lock_irqsave(&bcm->leds_lock, flags); ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL); for (i = 0; i < BCM43xx_NR_LEDS; i++) { led = &(bcm->leds[i]); turn_on = 0; switch (led->behaviour) { case BCM43xx_LED_INACTIVE: continue; case BCM43xx_LED_OFF: case BCM43xx_LED_BCM4303_3: break; case BCM43xx_LED_ON: turn_on = 1; break; case BCM43xx_LED_ACTIVITY: case BCM43xx_LED_BCM4303_0: turn_on = activity; break; case BCM43xx_LED_RADIO_ALL: turn_on = radio->enabled && bcm43xx_is_hw_radio_enabled(bcm); break; case BCM43xx_LED_RADIO_A: case BCM43xx_LED_BCM4303_2: turn_on = (radio->enabled && bcm43xx_is_hw_radio_enabled(bcm) && phy->type == BCM43xx_PHYTYPE_A); break; case BCM43xx_LED_RADIO_B: case BCM43xx_LED_BCM4303_1: turn_on = (radio->enabled && bcm43xx_is_hw_radio_enabled(bcm) && (phy->type == BCM43xx_PHYTYPE_B || phy->type == BCM43xx_PHYTYPE_G)); break; case BCM43xx_LED_MODE_BG: if (phy->type == BCM43xx_PHYTYPE_G && bcm43xx_is_hw_radio_enabled(bcm) && 1/*FIXME: using G rates.*/) turn_on = 1; break; case BCM43xx_LED_TRANSFER: if (transferring) bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_MEDIUM); else bcm43xx_led_blink_stop(led, 0); continue; case BCM43xx_LED_APTRANSFER: if (bcm->ieee->iw_mode == IW_MODE_MASTER) { if (transferring) { interval = BCM43xx_LEDBLINK_FAST; turn_on = 1; } } else { turn_on = 1; if (0/*TODO: not assoc*/) interval = BCM43xx_LEDBLINK_SLOW; else if (transferring) interval = BCM43xx_LEDBLINK_FAST; else turn_on = 0; } if (turn_on) bcm43xx_led_blink_start(led, interval); else bcm43xx_led_blink_stop(led, 0); continue; case BCM43xx_LED_WEIRD: //TODO break; case BCM43xx_LED_ASSOC: if (bcm->softmac->associnfo.associated) turn_on = 1; break; #ifdef CONFIG_BCM43XX_DEBUG case BCM43xx_LED_TEST_BLINKSLOW: bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_SLOW); continue; case BCM43xx_LED_TEST_BLINKMEDIUM: bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_MEDIUM); continue; case BCM43xx_LED_TEST_BLINKFAST: bcm43xx_led_blink_start(led, BCM43xx_LEDBLINK_FAST); continue; #endif /* CONFIG_BCM43XX_DEBUG */ default: dprintkl(KERN_INFO PFX "Bad value in leds_update," " led->behaviour: 0x%x\n", led->behaviour); }; if (led->activelow) turn_on = !turn_on; if (turn_on) ledctl |= (1 << i); else ledctl &= ~(1 << i); } bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl); spin_unlock_irqrestore(&bcm->leds_lock, flags); } void bcm43xx_leds_switch_all(struct bcm43xx_private *bcm, int on) { struct bcm43xx_led *led; u16 ledctl; int i; int bit_on; unsigned long flags; spin_lock_irqsave(&bcm->leds_lock, flags); ledctl = bcm43xx_read16(bcm, BCM43xx_MMIO_GPIO_CONTROL); for (i = 0; i < BCM43xx_NR_LEDS; i++) { led = &(bcm->leds[i]); if (led->behaviour == BCM43xx_LED_INACTIVE) continue; if (on) bit_on = led->activelow ? 0 : 1; else bit_on = led->activelow ? 1 : 0; if (bit_on) ledctl |= (1 << i); else ledctl &= ~(1 << i); } bcm43xx_write16(bcm, BCM43xx_MMIO_GPIO_CONTROL, ledctl); spin_unlock_irqrestore(&bcm->leds_lock, flags); }